LED光源不同光色與光照度對伊拉肉兔母兔繁殖性能的影響
[Abstract]:Meat rabbit industry plays an important role in the development of grain-saving animal husbandry industry in China. Increasing the reproductive efficiency of female rabbits is very important to the development of meat rabbit industry. Light has a significant effect on the reproductive performance of animals, and LED light source has been widely used in many animal studies, but there is still lack of related reports on the effects of LED light source on the reproductive performance of meat rabbits. In order to improve the breeding efficiency of large-scale meat rabbits in China, the suitable light conditions for improving the reproductive performance of female rabbits were investigated by using LED light source. The results are as follows: 1. To investigate the effect of LED photochromic on reproductive performance and serum hormone level of female rabbits. Two hundred and fifty female rabbits were divided into 5 groups. 50 rabbits in each group were fed in 5 kinds of LED photochromatic environments, such as white, red, yellow, blue and green. The results showed that red light and yellow light significantly increased the conception rate and the number of weaning rabbits per 100 female rabbits (P0.05). The serum melatonin levels of the female rabbits in each light group were significantly lower than those in the white light group (P0.01), while the levels of follicle stimulating hormone and estradiol in the red light group and green light group were significantly lower than those in the white light group (P0.05), while the levels of follicle stimulating hormone and estradiol increased. The levels of serum follicle stimulating hormone (FSH) in green light group and serum estradiol level in red light group were significantly increased (P0.05). Optimization of LED illumination conditions for lactating female rabbits. 225 lactating female rabbits were divided into 15 groups with 15 rabbits in each group. White, red, yellow, blue, green and white, red, yellow, blue, green and 60 lux,80 lux,100 lux were selected to form 15 treatments. The results showed that there was no significant interaction between light color and light intensity on reproductive performance of lactating female rabbits (P0.05). The pregnant rate and the number of weaned rabbits per 100 female rabbits in red light group were higher than those in other light groups, and the difference was significant (P0.05) when the light intensity factor was not taken into account; when the photochromic factors were not taken into account, the number of weaned rabbits in red light group was higher than that in blue light group (P0.05). The pregnant rate of lactating female rabbits and the number of weaned rabbits per insemination of 100 female rabbits were the highest in 60 lux group, and the difference was significant (P0.05). 3. Optimization of LED illumination conditions for empty pregnant female rabbits. 150 empty pregnant rabbits were divided into 15 groups with 10 rabbits in each group. White, red, yellow, blue, green and white, red, yellow, blue, green and 60 lux,80 lux,100 lux were selected to form 15 treatments. The results showed that there was no significant interaction between light color and light intensity on the reproductive performance of female rabbits (P0.05). When the light intensity was not taken into account, the pregnant rate, the number of live offspring and the number of weaned rabbits per 100 female rabbits in green light group were higher than those in other light groups. The number of live and weaned rabbits was significantly increased in Huangguang group (P0.05), and the pregnant rate of 100 lux group and the number of weaning rabbits per insemination 100 were the highest when the light color was not taken into account. There was a significant difference between the light intensity of 80 lux group and the light intensity group (P0.05). In conclusion, the reproductive performance of lactating female rabbits was the best in the LED red light and 60 lux light environment, and the best in the LED green light and 100 lux light environment.
【學(xué)位授予單位】:西北農(nóng)林科技大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:S829.1
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